Fundamental reactions in illuminated titanium dioxide nanocrystallite layers studied by pulsed laser
Article Abstract:
The reactions in illuminated TiO2 nanocrystallite layers was studied by exposing them to pulsed laser photolysis in the presence and absence of added reactants. Results showed that the decay of absorption in the nanosecond time range is mainly due to gradual electron trapping, but the absorbance changes are not affected by scavengers. The trapping of electron was found to successfully compete with recombination even in the absence of scavengers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Laser photolysis of TiO2 layers in the presence of aqueous iodide
Article Abstract:
Mechanistic studies on the TiO2-iodide system in the form of nanocrystallite layers using laser photolysis, extending the kinetic studies up to the range of several seconds is presented. The study revealed that the separation between I3(super -) and the TiO2 electrons in the reaction is because of the dense coverage of the TiO2 surface by the photosensitizer.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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Kinetics of hydrogen production upon reduction of aqueous TiO2 nanoparticles catalyzed by Pd(super 0), Pt(super 0), or Au(super 0) coatings and an unusual hydrogen abstraction; steady state and pulse radiolysis study
Article Abstract:
TiO2 electrons are produced by electron injection of e(sub aq)(super -) and 2-propanol radicals through radiolysis of acid aqueous TiO2 colloidal solutions. The e(sub TiO2)(super -) decays within several hours when the TiO2 nanoparticles are coated with Pd(super 0), Pt(super 0), or Au(super 0).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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